公开(公告)号：US20150249387A1

公开(公告)日：2015-09-03

申请号：US14711995

申请日：2015-05-14

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Toshio NAGASAWA ,  Yoshitaka ONAYA ,  Koji SAIKUSA ,  Shin CHIBA

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M3/156 ,  H02M3/1584 ,  H02M3/1588 ,  H02M2001/0009 ,  Y02B70/1466

Abstract: A power-supply apparatus according to an aspect includes an inductor, a transistor that supplies, in an on-state, a current to the input side of the inductor, a second transistor that becomes, when the first transistor is in an off-state, an on-state and thereby brings the input side of the inductor to a predetermined potential, a signal generation unit that generates voltage signals corresponding to a current flowing to the inductor, an amplifier that outputs a current according to the voltage signals, a converter that converts the current output from the amplifier into a voltage signal, and a control unit that controls the transistors based on a first feedback signal corresponding to the voltage on the output side of the inductor and the voltage signal, which is used as a second feedback signal.

Abstract translation: 根据本发明的电源装置包括电感器，晶体管，其将导通状态的电流提供给电感器的输入侧;第二晶体管，当第一晶体管处于截止状态时， 导通状态，从而使电感器的输入侧达到预定电位;产生与流过电感的电流相对应的电压信号的信号产生单元，根据电压信号输出电流的放大器;转换器 其将来自放大器的电流输出转换为电压信号，以及控制单元，其基于与电感器的输出侧上的电压和电压信号相对应的第一反馈信号来控制晶体管，该电压信号用作第二反馈 信号。

公开(公告)号：US20140191737A1

公开(公告)日：2014-07-10

申请号：US14096499

申请日：2013-12-04

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Toshio NAGASAWA ,  Yoshitaka ONAYA ,  Koji SAIKUSA ,  Shin CHIBA

IPC: H02M3/158 ,  H02M3/156

CPC classification number: H02M3/158 ,  H02M3/156 ,  H02M3/1584 ,  H02M3/1588 ,  H02M2001/0009 ,  Y02B70/1466

Abstract: A power-supply apparatus according to an aspect includes an inductor, a transistor that supplies, in an on-state, a current to the input side of the inductor, a second transistor that becomes, when the first transistor is in an off-state, an on-state and thereby brings the input side of the inductor to a predetermined potential, a signal generation unit that generates voltage signals corresponding to a current flowing to the inductor, an amplifier that outputs a current according to the voltage signals, a converter that converts the current output from the amplifier into a voltage signal, and a control unit that controls the transistors based on a first feedback signal corresponding to the voltage on the output side of the inductor and the voltage signal, which is used as a second feedback signal.

Abstract translation: 根据本发明的电源装置包括电感器，晶体管，其将导通状态的电流提供给电感器的输入侧;第二晶体管，当第一晶体管处于截止状态时， 导通状态，从而使电感器的输入侧达到预定电位;产生与流过电感的电流相对应的电压信号的信号产生单元，根据电压信号输出电流的放大器;转换器 其将来自放大器的电流输出转换为电压信号，以及控制单元，其基于与电感器的输出侧上的电压和电压信号相对应的第一反馈信号来控制晶体管，该电压信号用作第二反馈 信号。